Jacob hilditch



(No Model!) J. HILDITGH.

SELF ACTING MECHANISM FOR SHADES AND BLI NDS.

Patented Apr. 7, 1885.

r N. PETERS, FholO-Lllhognphnr. washingmn. D. c.

UNITED STATES PATENT OFFICE.

JACOB HILDIIGH, CHRISTIAN IA, N ORW'AY.

'SELF-ACTING MECHANISM FOR SHADES AND BLINDS.

ISPECIIFICCAZEION forming part of Letters Patent No. 315,029, datedApril 7,1885.

Application filed Sepember 20, 1884. (No model.)

To all whom it may concern:

Be it known that-I, JACOB HILDITGH, a subject of the King of Norway,residing in Christiania, in the Kingdom of Norway, have invented certainnew and useful Improvements in Self Acting Mechanism for Shades andBlinds; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

My invention relates to an improvement in devices for automaticallyraising window-curtains, the object being to provide a device which maybe easily and readily applied to curtain-fixtures of ordinaryconstruction, and

which shall be simple and economical in construction and free from allliability of getting out of order.

With these ends in View my invention consists in certain details ofconstruction and combinations of parts, as will be hereinafterdescribed, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a sectional view of myimprovement. Fig. 2 is a front view thereof, and Figs. 3, 4, and 5 aremodifications.

A represents a window-frame, in the upper portion of which is mounted acurtain-pole, a, the ends fitting into bearings 72, said pole a beingprovidedunear one end with a vacant portion, and, if desired, with adisk, 0, said pole forming a reel for the cord to wind on, as will behereinafter explained, the disk 0 serving to prevent the cord fromget-ting on the end of the pole and interfering with its turning in thebearing.

To the frame A is secured a metal plate, B, to the center of which issecured or formed integral therewith the stud or projection O, the saidplate B being secured to the firame by means of the screws (2.

On the plate B is adapted to fit the roller D, centrally provided withthe inwardlyextending collar, 6, which-fits on the stud G and allows theroller to turn thereon, the stud being provided with a shoulder, f,against which fits the end of the collar 6, and prevents the roller frombearing against the frontface of the plate B. The rim of the roller ispreferably grooved or hollowed out, as shown at g, and in vertical linewith the reel a, said roller being retained in its proper position bymeans of a screw, E, fitting into a screw-threaded hole in the stud O,the head of the screw fitting against the outer face of the roller, butnot tight enough to prevent the roller from turning. Within the rolleris a coiled spring, F, the outer end of which is secured to a pin. it,formed on or secured to the plate B, the inner end of the spring beingsecured to the collar or flange 6, formed on the roller. hen the rolleris turned'in one direction, the spring, being secured to the collar, isuncoiled, and as soon as the roller is released the spring immediatelyreturns to its normal condition and turns the roller in the oppositedirection. The curtain-pole a is also turned by the spring in a similarmanner by means of the cord 1', which is secured thereto, and which issecured to the roller, said cord being adapted to be wound around thecurtain and the grooved rim of the roller. WVhen the curtain is lowered,the roller is turned by means of the cord 1' and the spring F uncoiled;but, as before explained, if the curtain is released, the springimmediately turns the rolier,winding the cord thereon, and therebyraising the curtain. The inner edge of the roller is provided withnotches 7c, in which is adapted to fit a lug or projection on the one ofa pawl pivoted to the plate B. WVhen the roller is revolved slowly, thepawl catches in the notches and holds the roller stationary; but whenthe roller is revolving rapidly the pawl rides across the notches andallows the roller to continue revolving.

I would have it understood that I do not limit myself to the exactconstruction shown and described, as many slight changes might be madetherein without departing from the spirit of my invention-as, forinstance, instead of forming a stud or hearing on the plate, a screw ispassed through the collar and through the plate B into the frame A,holding the parts in position, as shown in Fig. 3. Again, the stud maybe used and a washer and pin employed to keep the roller in position, asshown in Fig. 5. Again, instead of employing a pawl, as shown in Figs. 1and 2, a sliding pin, m, may be used in lieu thereof,

said pin fitting in a groove, a, in the plate B,

adapted, when the roller is revolving slowly, to drop a notch or recess,0, formed on the inner edge of the roller.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination, with a curtain and ourtain-pole, of aspring-actuated roller journaled on a stud secured to the Window-frame,and provided with a notched periphery, a pawl for engaging the notchedperiphery of the roller, and a cord connecting the roller andcurtainpole.

2. The combination, with a plate secured 'to the window-frame andprovided with a stud,

of a pulley provided with an inwardly-ex- JACOB HILDITOH.

Witnesses:

SoREN H. STRoM, J OHAN HOPZAARD.

